File not extracted

[rudolphos]

My device is rooted, Android 5.1, but I couldn't find key file previously, so I used this script. It gave several errors and key file wasn't extracted.

=========================================================================
= This script will extract the WhatsApp Key file and DB on Android 4.0+ =
= You DO NOT need root for this to work but you DO need Java installed. =
= If your WhatsApp version is greater than 2.11.431 (most likely), then =
= a legacy version will be installed temporarily in order to get backup =
= permissions. You will NOT lose ANY data and your current version will =
= be restored at the end of the extraction process so try not to panic. =
= Script by: TripCode (Greets to all who visit: XDA Developers Forums). =
= Thanks to: dragomerlin for ABE and to Abinash Bishoyi for being cool. =
=         ###          Version: v4.7 (12/10/2016)          ###          =
=========================================================================

Please connect your Android device with USB Debugging enabled:

* daemon not running. starting it now on port 5037 *
* daemon started successfully *
adb server is out of date.  killing...
* daemon started successfully *

WhatsApp 2.23.4.79 installed

Downloading legacy WhatsApp 2.11.431 to local folder
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  1942  100  1942    0     0   2762      0 --:--:-- --:--:-- --:--:--  2762

adb server is out of date.  killing...
* daemon started successfully *
Backing up WhatsApp 2.23.4.79
Backup complete

Installing legacy WhatsApp 2.11.431
* daemon not running. starting it now on port 5037 *
ADB server didn't ACK
* failed to start daemon *
error: cannot connect to daemon
adb server is out of date.  killing...
* daemon started successfully *
Install complete

adb server is out of date.  killing...
* daemon started successfully *
Now unlock your device and confirm the backup operation.

Please enter your backup password (leave blank for none) and press Enter:

Exception in thread "main" java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)
Caused by: java.lang.RuntimeException: java.lang.NumberFormatException: For input string: ""
        at org.nick.abe.AndroidBackup.extractAsTar(AndroidBackup.java:420)
        at org.nick.abe.Main.main(Main.java:128)
        ... 5 more
Caused by: java.lang.NumberFormatException: For input string: ""
        at java.lang.NumberFormatException.forInputString(Unknown Source)
        at java.lang.Integer.parseInt(Unknown Source)
        at java.lang.Integer.parseInt(Unknown Source)
        at org.nick.abe.AndroidBackup.extractAsTar(AndroidBackup.java:280)
        ... 6 more
bin\tar.exe: Cannot open tmp\whatsapp.tar: No such file or directory
bin\tar.exe: Error is not recoverable: exiting now
bin\tar.exe: Cannot open tmp\whatsapp.tar: No such file or directory
bin\tar.exe: Error is not recoverable: exiting now
bin\tar.exe: Cannot open tmp\whatsapp.tar: No such file or directory
bin\tar.exe: Error is not recoverable: exiting now
bin\tar.exe: Cannot open tmp\whatsapp.tar: No such file or directory
bin\tar.exe: Error is not recoverable: exiting now
bin\tar.exe: Cannot open tmp\whatsapp.tar: No such file or directory
bin\tar.exe: Error is not recoverable: exiting now

Cleaning up temporary files ...

Deleted file - C:\Users\ABC\Desktop\123\WhatsApp-Key-DB-Extractor-master\tmp\whatsapp.ab
Deleted file - C:\Users\ABC\Desktop\123\WhatsApp-Key-DB-Extractor-master\tmp\waplen.txt
Deleted file - C:\Users\ABC\Desktop\123\WhatsApp-Key-DB-Extractor-master\tmp\sdpath.txt
Deleted file - C:\Users\ABC\Desktop\123\WhatsApp-Key-DB-Extractor-master\tmp\wapath.txt
Deleted file - C:\Users\ABC\Desktop\123\WhatsApp-Key-DB-Extractor-master\tmp\wapver.txt
Deleted file - C:\Users\ABC\Desktop\123\WhatsApp-Key-DB-Extractor-master\tmp\sdkver.txt

Done

Restoring WhatsApp 2.23.4.79
adb server is out of date.  killing...
* daemon started successfully *
4316 KB/s (11075584 bytes in 2.505s)
adb server is out of date.  killing...
* daemon started successfully *
        pkg: /data/local/tmp/base.apk
Failure [INSTALL_FAILED_INVALID_APK]
adb server is out of date.  killing...
* daemon started successfully *

Restore complete

Removing WhatsApp 2.23.4.79 temporary apk
Deleted file - C:\Users\ABC\Desktop\123\WhatsApp-Key-DB-Extractor-master\tmp\base.apk

Operation complete

Press any key to continue . . .